Re: [gentoo-user] wlan0 config questions
On Tue, 13 Apr 2010 23:09:04 -0400, Walter Dnes wrote: I've got hal and dbus masked out (pam too), so wicd and networkmanager are out of the question. Wicd doesn't need hal, but dbus is so useful you are crippling your system by blocking it. On a multitasking system, programs need a way of talking to one another, dbus is currently it. -- Neil Bothwick But there, everything has its drawbacks, as the man said when his mother-in-law died, and they came down upon him for the funeral expenses. -- Jerome K. Jerome signature.asc Description: PGP signature
Re: [gentoo-user] wlan0 config questions
On Mon, Apr 12, 2010 at 01:17:07PM +0100, Mick wrote
You probably want to look at wpa_supplicant (in particular man
wpa_gui), or any other network manager type of application would do
(wicd, network manager, wifi-radar) which allows you to enable/disable
access points for automatic connection to them.
Alternatively, a less practical approach would be to set up
config_wlan0=( null )
in your /etc/conf.d/net.wlan0, which will not allow your wireless card
to obtain any address. Or, you can play with dhcpcd options like so:
dhcp_eth0=release nogateway nosendhost which means that it will not
bind to any wireless router as a gateway.
Thanks. that keeps things sane. Now let's start with simple stuff
first, manually connecting to an open access point at the public
library. Listed below are files /etc/conf.d/net, ~/bin/wi_open, and
/etc/wpa_supplicant.conf.open. Assuming that I have /etc/sudoers
properly set up, is ~/bin/wi_open the correct incantation? It copies
the appropriate config to /etc/wpa_supplicant.conf and then starts and
connects wifi. I plan to have multiple config files, to cover different
situations.
/etc/conf.d/net
===
config_eth0=192.168.123.249 broadcast 192.168.123.255 netmask
255.255.255.248 mtu 1452
routes_eth0=(
default via 192.168.123.254 metric 2
192.168.123.248/29 via 192.168.123.254 metric 0
)
modules=( wpa_supplicant )
config_wlan0=( null )
wpa_supplicant_wlan0=-Dwext
wpa_timeout_wlan0=15
~/bin/wi_open
==
#!/bin/bash
sudo /bin/cp /etc/wpa_supplicant.conf.open /etc/wpa_supplicant.conf
sudo /sbin/modprobe ath5k
sudo /etc/init.d/net.wlan0 restart
sudo /sbin/ifconfig wlan0 up
sudo /sbin/iwconfig wlan0 essid any channel auto
sudo /usr/sbin/wpa_supplicant -iwlan0
sudo /sbin/dhcpcd -C resolv.conf -C mtu wlan0
/etc/wpa_supplicant.conf.open
=
# Connect to an open AP
network={
ssid=public library
key_mgmt=NONE
priority=9
}
network={
key_mgmt=NONE
priority=-9
}
--
Walter Dnes waltd...@waltdnes.org
Re: [gentoo-user] wlan0 config questions
On Tue, 13 Apr 2010 07:39:31 -0400, Walter Dnes wrote: Thanks. that keeps things sane. Now let's start with simple stuff first, manually connecting to an open access point at the public library. Listed below are files /etc/conf.d/net, ~/bin/wi_open, and /etc/wpa_supplicant.conf.open. Assuming that I have /etc/sudoers properly set up, is ~/bin/wi_open the correct incantation? It copies the appropriate config to /etc/wpa_supplicant.conf and then starts and connects wifi. I plan to have multiple config files, to cover different situations. This sounds like an awful lot of work to do something that Wicd will handle almost automatically. -- Neil Bothwick Scrotum is a small planet near Uranus. True/False? signature.asc Description: PGP signature
Re: [gentoo-user] wlan0 config questions
On Tue, Apr 13, 2010 at 09:13, Neil Bothwick n...@digimed.co.uk wrote: On Tue, 13 Apr 2010 07:39:31 -0400, Walter Dnes wrote: Thanks. that keeps things sane. Now let's start with simple stuff first, manually connecting to an open access point at the public library. Listed below are files /etc/conf.d/net, ~/bin/wi_open, and /etc/wpa_supplicant.conf.open. Assuming that I have /etc/sudoers properly set up, is ~/bin/wi_open the correct incantation? It copies the appropriate config to /etc/wpa_supplicant.conf and then starts and connects wifi. I plan to have multiple config files, to cover different situations. This sounds like an awful lot of work to do something that Wicd will handle almost automatically. Agreed. After many tries I've found that you really need a network manager like WICD with netbooks or notebooks. Mobile devices require an agile and easy interface for networking. -- Daniel da Veiga
Re: [gentoo-user] wlan0 config questions
On 13 April 2010 15:44, Daniel da Veiga danieldave...@gmail.com wrote: On Tue, Apr 13, 2010 at 09:13, Neil Bothwick n...@digimed.co.uk wrote: On Tue, 13 Apr 2010 07:39:31 -0400, Walter Dnes wrote: Thanks. that keeps things sane. Now let's start with simple stuff first, manually connecting to an open access point at the public library. Listed below are files /etc/conf.d/net, ~/bin/wi_open, and /etc/wpa_supplicant.conf.open. Assuming that I have /etc/sudoers properly set up, is ~/bin/wi_open the correct incantation? It copies the appropriate config to /etc/wpa_supplicant.conf and then starts and connects wifi. I plan to have multiple config files, to cover different situations. This sounds like an awful lot of work to do something that Wicd will handle almost automatically. Agreed. After many tries I've found that you really need a network manager like WICD with netbooks or notebooks. Mobile devices require an agile and easy interface for networking. For PCs you don't typically need anything more than the default Gentoo scripts, but for a laptop wicd, networkmanager and the like will do exactly what you need with no perceptible overhead and the benefit of notifications for when things start bobbing up and down. If you already have installed wpa_supplicant I recommend running wpa_gui and enabling disabling any interfaces you care to associate with. Then leave it running in the tooltray for quick access and notifications. -- Regards, Mick
Re: [gentoo-user] wlan0 config questions
On 13 Apr 2010, at 12:39, Walter Dnes wrote: ... I plan to have multiple config files, to cover different situations. You can have multiple networks specified in /etc/wpa_supplicant.conf and in /etc/conf.d/net. I think you can just specify the various SSIDs / credentials in wpa_supplicant.conf and if you don't want the adaptor just to get an IP address by DHCP then you can do that in /etc/conf.d/net Stroller.
Re: [gentoo-user] wlan0 config questions
On Tue, Apr 13, 2010 at 04:03:08PM +0100, Mick wrote For PCs you don't typically need anything more than the default Gentoo scripts, but for a laptop wicd, networkmanager and the like will do exactly what you need with no perceptible overhead and the benefit of notifications for when things start bobbing up and down. If you already have installed wpa_supplicant I recommend running wpa_gui and enabling disabling any interfaces you care to associate with. Then leave it running in the tooltray for quick access and notifications. I've got hal and dbus masked out (pam too), so wicd and networkmanager are out of the question. wpa_gui is a Qt frontend to wpa_cli. The qt4 *TARBALL* is approx 150 megabytes. Disk space is not the problem, but loading unnecessary libs on an underpowered memory-constrained netbook is an issue. Besides, I can always... [aa1][root][~] modprobe ath5k [aa1][root][~] /etc/init.d/net.wlan0 restart * Stopping wlan0 * Bringing down wlan0 * Shutting down wlan0 ... [ ok ] * Stopping wpa_cli on wlan0 ...[ ok ] * Stopping wpa_supplicant on wlan0 ... [ ok ] * Starting wlan0 * Starting wpa_supplicant on wlan0 ... [ !! ] [aa1][root][~] iwconfig wlan0 essid example channel auto [aa1][root][~] ifconfig wlan0 up [aa1][root][~] iwlist wlan0 scan | grep ESSID ESSID:KGB zone** keep OFF** ESSID:BELL140 ESSID:MyLinksys ESSID:BELL325 ESSID:charmins family network 20 ESSID:and ESSID:linksys ESSID:default ESSID:Kooshman ESSID:SONA2 ESSID:BELL628 ESSID:MyDlink ESSID:A7770 Fortunately, I'm an honest guy, and I choose to confine my testing of open system access to places like the Toronto Public Library, where they advertise it... http://www.torontopubliclibrary.ca/spe_ser_wir.jsp A little bit of scripting, plus appropriate entries in /etc/sudoers, and I'm all set. -- Walter Dnes waltd...@waltdnes.org
Re: [gentoo-user] wlan0 config questions
On 12 April 2010 08:11, Walter Dnes waltd...@waltdnes.org wrote: Here's /etc/conf.d/net on my Gentoo netbook system... config_eth0=192.168.123.249 broadcast 192.168.123.255 netmask 255.255.255.248 mtu 1452 routes_eth0=( default via 192.168.123.254 metric 2 192.168.123.248/29 via 192.168.123.254 metric 0 ) The multiple routes allow eth0 to remain connected to my router and talk to the other machine on the lan while running a dialup connection. I want to try out my netbook wifi, and I find that it works too well!!! Here's the output after starting up wlan0. The ESSID and MAC address of my neighbours in the condo have been masked to protect the innocent... aa1 init.d # /etc/init.d/net.wlan0 restart * Stopping wlan0 * Bringing down wlan0 * Stopping dhcpcd on wlan0 ... [ ok ] * Shutting down wlan0 ... [ ok ] * Starting wlan0 * Configuring wireless network for wlan0 * WEP key is not set for KGB zone** keep OFF** - not connecting * wlan0 connected to ESSID *** at **:**:**:**:**:** * in managed mode on channel 6 (WEP disabled) * Configuration not set for wlan0 - assuming DHCP * Bringing up wlan0 * dhcp * Running dhcpcd ... wlan0: dhcpcd 4.0.15 starting wlan0: broadcasting for a lease wlan0: offered 192.168.0.103 from 192.168.0.1 wlan0: ignoring offer of 192.168.0.103 from 192.168.0.1 wlan0: acknowledged 192.168.0.103 from 192.168.0.1 wlan0: checking 192.168.0.103 is available on attached networks wlan0: leased 192.168.0.103 for 604800 seconds [ ok ] * wlan0 received address 192.168.0.103/24 After picking my jaw off the floor, I downed wlan0. Just to be safe, I ran rmmod ath5k. I want to be able to scan available connections and then select which one I want, e.g. I want to try it at the local public library. I do not like the concept of the netbook automatically connecting to the first available access point. What do I have to do to *NOT* connect automatically? You probably want to look at wpa_supplicant (in particular man wpa_gui), or any other network manager type of application would do (wicd, network manager, wifi-radar) which allows you to enable/disable access points for automatic connection to them. Alternatively, a less practical approach would be to set up config_wlan0=( null ) in your /etc/conf.d/net.wlan0, which will not allow your wireless card to obtain any address. Or, you can play with dhcpcd options like so: dhcp_eth0=release nogateway nosendhost which means that it will not bind to any wireless router as a gateway. -- Regards, Mick
